Samsung SGH-S300 Service Manual page 24

1 2
VRF
A
C903
22N F
22 21 20 19 18 17 16
1
GND
2 RXQP
RXQP
U900
B
3
RXQN
RXQN
4
RXI P RXI P
5
RXI N RXI N
VRF
23 24 6 7 8 9 10
C910
22N F
C
C911
100PF
CLK13M_RF
D
SYN_EN
SD O
SERLE
SERCL K
SERDAT
E
F
1 2
3 4
SERDAT
SERCLK
SERL E
SD O 15
SDO
14
PDNB
SI_EN
R999 0
GND 13
12
IO N
IO P 11
TXIP
TXIN
TXQP
TXQN
VOSC
L900
C914
3.9n H
10PF
C916
100PF
GND
GND
GND
GND
VDDI
NC
PDNB IFLO P
U902
IFLO N
SD O
VDDR
SEN B
SCLK RFLO P
SD I
RFLO N
GND
NC
MICRO STRIP LINE
SI-LA B
3 4
SAMSUNG Proprietary-Contents may change without notice
56
VRF VRF
C905
C906
22N F
22NF
34 33 32
31 30 29 28 27 26
1
IO N
2 24
RFOD
IO P
3 VDD1 23
CKN
4 22
U901 RFIG N
CKP
5 RFIG P 21
TXIP
6 20
RFID N
TXIN
7 RFID P 19
TXQP
8 18
RFIP N
TXQN
RFIPP 17
35 36 10 11 12 13 14 15 16
9
VRF
VOSC
C915
22N F
C917
10PF
VOSC
C921
22NF
Changed by Date Changed
user12
5 6
6-21
SGH-S300 Fl ow Chart of Troubl eshooti ng and Ci rcui t Di agram s
7
SI_EN
C924
100PF
C922
47PF
GSM_PAM_IN
DPCS_PAM_I N
C923
33PF
VRF
C908
22NF
GSM_LNA_IN_N
GSM_LNA_IN_P
DCS_LNA_IN_N
DCS_LNA_IN_P
PCS_LNA_IN_ N
PCS_LNA_IN_ P
Engineer
COMPANY NAME
SEOY H
Drawn by
SEOY H
R&D CH K
TITLE :
DOC CTRL CH K
SGH-S300
MFG ENGR CH K
Time Changed QA CH K REV Drawing Numbe r
2002.11.1 3
6:03:57 pm
7
8
A
B
C
D
E
Address
F
City
Size
A3
Shee t 9 of 10
8